<template>
  <div class="login-container">
    <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form" auto-complete="on" label-position="left">

     <!-- 放置标题图片 @是设置的别名-->
      <div class="title-container">
          <h3 class="title">
            <img src="@/assets/common/login-logo.png" alt="">
          </h3>
      </div>

      <el-form-item prop="mobile">
        <span class="svg-container">
          <svg-icon icon-class="user" />
        </span>
        <el-input
          ref="mobile"
          v-model="loginForm.mobile"
          placeholder="Username"
          name="mobile"
          type="text"
          tabindex="1"
          auto-complete="on"
        />
      </el-form-item>

      <el-form-item prop="password">
        <span class="svg-container">
          <svg-icon icon-class="password" />
        </span>
        <el-input
          :key="passwordType"
          ref="password"
          v-model="loginForm.password"
          :type="passwordType"
          placeholder="Password"
          name="password"
          tabindex="2"
          auto-complete="on"
          @keyup.enter.native="handleLogin"
        />
        <span class="show-pwd" @click="showPwd">
          <svg-icon :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'" />
        </span>
      </el-form-item>

      <el-button class="loginBtn" :loading="loading" type="primary" style="width:100%;margin-bottom:30px;" @click.native.prevent="handleLogin">登录</el-button>
       <!-- 登录输入框下面的提示信息 -->
      <div class="tips">
      <span style="margin-right:20px;">账号: 13800000002</span>
      <span> 密码: 123456</span>
      </div>

    </el-form>
  </div>
</template>

<script>
import { validMobile } from '@/utils/validate'
import { login } from '@/api/user'
import { setTokenTimeStamp } from '@/utils/auth'


export default {
  name: 'Login',
  data() {
    // 新定义一个变量  validateMobile   接收自定义校验  (注意区分和上面的按需导入 名validMobile)
    const validateMobile = (rule, value, callback) => {
      // validMobile 是校验手机号的 是按需导入的  和上面的变量validateMobile  不一样
      // 如果手机校验返回的值是false  提示用户  成功就放行
      if (!validMobile(value)) {
        callback(new Error('Please enter the correct user name'))
      } else {
        callback()
      }
    }
    const validatePassword = (rule, value, callback) => {
      if (value.length < 6) {
        callback(new Error('The password can not be less than 6 digits'))
      } else {
        callback()
      }
    }
    return {
      
      loginForm: {
          mobile: '13800000002',
          password: '123456'
      },
      // 规则校验
      loginRules: {
        
        mobile: [{ required: true, trigger: 'blur', validator: validateMobile }],
        password: [
          { required: true,  message:'请输入密码', trigger: 'blur'},
          { min:6,max:16,  message:'请输入6至16位密码', trigger: 'blur'}
          ]

      },
      loading: false,
      passwordType: 'password',
      redirect: undefined
    }
  },
  watch: {
    $route: {
      handler: function(route) {
        this.redirect = route.query && route.query.redirect
      },
      immediate: true
    }
  },
  methods: {
    showPwd() {
      if (this.passwordType === 'password') {
        this.passwordType = ''
      } else {
        this.passwordType = 'password'
      }
      this.$nextTick(() => {
        this.$refs.password.focus()
      })
    },
    handleLogin() {
      // 1兜底校验
        this.$refs.loginForm.validate(async(valid) => {
        if (!valid) return   //校验失败
        // 2 校验成功 发送axios  实现登录    这里需要封装一个api 组件 然后调用
        // 3 发送请求
        // 捕获错误
       try {
        // 这里不需要解构了  因为在request.js文件中已经解开了
         const res= await login(this.loginForm)
        console.log('res',res);
        // 4 获取到token存储到vuex中
        // this.$store.commit(模块名/mutation中的函数名,res.data)
         this.$store.commit('user/updataToken',res.data)

        //建立时间戳Date.now  将获取到的时间戳存储到cookie中
        setTokenTimeStamp(Date.now())

        // 5 跳转到首页
              // this.$router.push('/') //其中 /代表主页的路由
        // 首先获取 退出登录时的页面地址  然后跳转到退出登录前的页面
        const url=this.$route.query.url
        this.$router.push(url||'/')   //如果退出前有地址 就去退出前的位置  没有就去首页
  
       } catch (error) {
        console.log('error123',error);
        
       }
       
      })
    }
  }
}
</script>

<style lang="scss">
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

$bg:#283443;
$light_gray: #68b0fe;  // 将输入框颜色改成蓝色
$cursor: #fff;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
  .login-container .el-input input {
    color: $cursor;
  }
}             

/* reset element-ui css */
.login-container {
  .el-input {
    display: inline-block;
    height: 47px;
    width: 85%;

    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $light_gray;
      height: 47px;
      caret-color: $cursor;

      &:-webkit-autofill {
        box-shadow: 0 0 0px 1000px $bg inset !important;
        -webkit-text-fill-color: $cursor !important;
      }
    }
  }

  .el-form-item {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.7); // 输入登录表单的背景色
    border-radius: 5px;
    color: #454545;
  }
    .el-form-item__error {
	color: #fff
  }
}
</style>

<style lang="scss" scoped>
$bg:#2d3a4b;
$dark_gray:#889aa4;
$light_gray:#eee;

.login-container {
  background-image: url('~@/assets/common/login.jpg'); // 设置背景图片
  background-position: center; // 将图片位置设置为充满整个屏幕
  min-height: 100%;
  width: 100%;
  background-color: $bg;
  overflow: hidden;

  .login-form {
    position: relative;
    width: 520px;
    max-width: 100%;
    padding: 160px 35px 0;
    margin: 0 auto;
    overflow: hidden;
      .loginBtn {
    background: #407ffe;
    height: 64px;
    line-height: 32px;
    font-size: 24px;
   }

  }

  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }

  .title-container {
    position: relative;
    background-image: url('~@/assets/common/login.jpg'); // 设置背景图片
    background-position: center; // 将图片位置设置为充满整个屏幕

    .title {
      font-size: 26px;
      color: $light_gray;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }

}
</style>
